Mathematics
Grade-7
Easy

Question

Find the radius of the circle having 44 units as the circumference.

  1. 7
  2. 8
  3. 5
  4. 9

hintHint:

The circumference of the circle = 2 cross times straight pi cross times radius space of space the space circle

The correct answer is: 7


    C equals 2 pi r comma
2 pi r equals 44 comma
2 cross times 22 over 7 cross times r equals 44 comma
r equals 44 cross times 7 over 22 cross times 1 half comma
r equals 7 comma
r equals 7 text  units.  end text

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